Audi TT MK1 8N 1.8T Engine Coolant Temp Sensor Replacement (Audi VW Seat Skoda)

welcome to my channel if your new here remember to like and subscribe?in this episode we will be replacing the coolant temperature sensor which is a nice quick job to do and give you peace of mind that the engine temp is correct. An engine coolant temperature sensor is essential for the optimal performance of your car. The engine coolant temperature sensor’s job is to measure the coolant temperature for the engine control module. A faulty coolant temp sensor can send a false signal to the onboard computer, resulting in an incorrect air-fuel mixture. For example, a faulty sensor can send a signal indicating the engine is cold when it is not, and more fuel will heat the engine quickly or vice versa OEM PART NUMBERS early square sensor -078919501B later oval sensor -059919501A Symptoms of a Bad Coolant Temperature Sensor Check Engine Light Poor Mileage Electrical Cooling Fans not coming on or on all the time Black Smoke from the Exhaust Pipe Hard Start Condition Engine Overheats Poor Idling Poor Engine Performance